Question

The lowest pressure attainable using the best available vacuum techniques is about 10−12N/m210−12N/m2. a. At such...

The lowest pressure attainable using the best available vacuum techniques is about 10−12N/m210−12N/m2.

a.

At such a pressure, how many molecules are there per cm3cm3 at 16 ∘C∘C

Science   Physics   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Assuming air to be an ideal gas.

Pressure

Temperature

We want to find number of molecules in 1cm3 of air.

Volume

Using ideal gas equation

where

There are 250 molecules in 1cm3 of air.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Ultra high vacuum chambers are capable of sustaining pressures as low as 10^-12 torr. How many...
Ultra high vacuum chambers are capable of sustaining pressures as low as 10^-12 torr. How many molecules per mL are there inside this apparatus at 10^-12 torr and 300K? what is the corresponding molar volume at this temperature and pressure?
Modern vacuum pumps make it easy to attain pressures of the order of 10−13atm in the...
Modern vacuum pumps make it easy to attain pressures of the order of 10−13atm in the laboratory. A. At a pressure of 7.10×10−14 atm and an ordinary temperature of 297.0 K , how many molecules are present in a volume of 1.03 cm3 ? B. How many molecules would be present at the same temperature but at 1.02 atm instead?
Modern vacuum pumps make it easy to attain pressures of the order of 10−13atm in the...
Modern vacuum pumps make it easy to attain pressures of the order of 10−13atm in the laboratory 1- At a pressure of 8.55×10^−14 atm and an ordinary temperature of 292.0 K , how many molecules are present in a volume of 1.10 cm^3 ? 2- How many molecules would be present at the same temperature but at 1.00 atm instead? Enter your answer numerically.
How many molecules of N2 remain in an ultrahigh vacuum system of 128 mL volume when...
How many molecules of N2 remain in an ultrahigh vacuum system of 128 mL volume when the pressure is reduced to 5*10^-10 mmHg at 25°C?
Question involving thermal behaviour of matter: A pressure of 10-10 Pa is readily achievable with laboratory...
Question involving thermal behaviour of matter: A pressure of 10-10 Pa is readily achievable with laboratory vacuum apparatus. a) If the residual air in this vacuum is at 0°C, how many airmolecules are in 1 L? (Wolfson, University fysics question 22 chapter 17) b) What is the thermal speed vth of these molecules (extra question, not in the book) Thank you!
A high vacuum pump can achieve pressures of 10^-11 atm. How many particles are there per...
A high vacuum pump can achieve pressures of 10^-11 atm. How many particles are there per cm^3 at this pressure? (Take 1atm= 101,000 Pa)
A balloon has a volume of 1.70 x 10^-2 m^3. The absolute pressure in the balloon...
A balloon has a volume of 1.70 x 10^-2 m^3. The absolute pressure in the balloon is 460 kPa and the temperature is 22 celsius. k = 1.38 x 10^-23 J/K a) How many molecules are there inside the balloon? Express using three significant figures b) what is the average translational kinetic energy of molecules? Express your answer using three significant figures. c) what is the total translational kinetic energy of the energy of the gas.
5. One mole of oxygen gas is at a pressure of 6.90 atm and a temperature...
5. One mole of oxygen gas is at a pressure of 6.90 atm and a temperature of 25.0°C. (a) If the gas is heated at constant volume until the pressure triples, what is the final temperature? °C (b) If the gas is heated so that both the pressure and volume are doubled, what is the final temperature? °C 6. (a) An ideal gas occupies a volume of 1.6 cm3 at 20°C and atmospheric pressure. Determine the number of molecules of...
A car wash has 10 available bays; however, the owners find that it is expensive to...
A car wash has 10 available bays; however, the owners find that it is expensive to have too many bays open when utilization is low because there are costs associated with having a bay open, such as electricity for lighting and costs for cleaning. Thus, they would like to have only as many bays open as needed to ensure average customer wait time (in line) of no more than five minutes. (Corporate strategy emphasizes low cost over short wait time)....
1.         If you had to produce a capacitor of 1000 µF using a vacuum gap of...
1.         If you had to produce a capacitor of 1000 µF using a vacuum gap of 0.100 mm (thickness of paper), how would the area needed compare to a football field? Given this enormous size, how do modern commercial capacitors get around this problem. 2.         Prove the RC has units of seconds. 3.         A statically charged balloon holds about 5 x 10-8 Coulombs of charge. How many “balloon worths” of charge is store in a 1000 µF at 6.00 V?...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT